What is the Cavum Trigeminale?

the cleft in the meningeal layer of dura of the middle cranial fossa near the tip of the petrous part of the temporal bone; it encloses the roots of the trigeminal nerve and the trigeminal ganglion. Synonym(s): cavum trigeminale [TA], trigeminal cavity ☆ , Meckel cavity, Meckel space.

What passes through Meckel’s cave?

Meckel’s cave is a natural mouth-shaped aperture in the medial portion of the middle cranial fossa that acts as a key conduit for the largest cranial nerve, the trigeminal nerve (CN V). It connects the cavernous sinus to the prepontine cistern of the posterior fossa.

What is in Meckel’s cave?

Meckel cave, also known as trigeminal cave, trigeminal cavity, or Meckel cavity, is a cerebrospinal fluid-containing dural pouch in the middle cranial fossa and opening from the posterior cranial fossa that houses the trigeminal ganglion.

What is Meckel’s cave meningioma?

Meningiomas of Meckel’s cave are uncommon tumors, accounting for some 1% of intracranial meningiomas (34). They arise from the arachnoidal cells of the dural recess, located in the posteromedial portion of the middle cranial fossa, housing the trigeminal ganglion (6, 22).

What is ophthalmic nerve?

The ophthalmic nerve is the first branch of the trigeminal nerve, which is also known as the fifth cranial nerve. The ophthalmic nerve supplies sensory innervation to the structures of the eye, including the cornea, ciliary body, lacrimal gland, and conjunctiva.

Where does Meckel diverticulum occur?

Meckel’s diverticulum is an outpouching or bulge in the lower part of the small intestine. The bulge is congenital (present at birth) and is a leftover of the umbilical cord. Meckel’s diverticulum is the most common congenital defect of the gastrointestinal tract. It occurs in about 2% to 3% of the general population.

What is foramen ovale skull?

Foramen ovale (plural: foramina ovalia) is an oval shaped opening in the middle cranial fossa located at the posterior base of the greater wing of the sphenoid bone, lateral to the lingula.

Are there synapses in trigeminal ganglion?

There are three main tracts of the trigeminal system; the spinal trigeminal tract (discussed above), the ventral trigeminothalamic tract, and dorsal trigeminothalamic tract. These tracts ultimately synapse with third-order neurons in the VPM and continue to the primary sensory cortex.

What is Gasserian ganglion supplied by?

the trigeminal nerve
The gasserian ganglion lies inside the skull on each side of the head. From the ganglion, the trigeminal nerve separates into three branches. The ophthalmic branch supplies the forehead. The maxillary branch supplies the midface or maxilla.

What kind of lesions are found in the Meckel cave?

There are many lesions of Meckel cave: extrinsic lesions: destroy adjacent bone as they extend toward the Meckel cave bony metastasis. chordoma. chondrosarcoma.

Who was the discoverer of the Meckel diverticulum?

Meckel’s grandson, also called Johann Friedrich Meckel (1781-1833), and thus nicknamed “the younger”, was the eponymous discoverer of Meckel diverticulum 2. 1. Kamel HA, Toland J. Trigeminal nerve anatomy: illustrated using examples of abnormalities.

Which is the best description of the Meckel space?

Meckel space – the cleft in the meningeal layer of dura of the middle cranial fossa that encloses the roots of the trigeminal nerve and the trigeminal ganglion. Synonym(s): Meckel cavity; trigeminal cave.

Which is the best description of the Meckel scan?

Meckel plane – a craniometric plane cutting the alveolar and the auricular points. Meckel scan – use of technetium-99m pertechnetate in a scan of the gastric mucosa to detect ectopic gastric mucosa in Meckel diverticulum.